[PATCH] Revert "nl80211: Use global netlink rtm event object"

Ben Greear greearb
Fri Oct 28 09:55:22 PDT 2011

On 10/28/2011 09:42 AM, Jouni Malinen wrote:
> On Fri, Oct 28, 2011 at 09:09:02AM -0700, Ben Greear wrote:
>> I did test it, but not with p2p (and bundled with the other pending
>> global-netlink patches).  Any idea what is why
>> this breaks p2p?  Are there any directions anywhere for how
>> to set up a p2p environment for testing?
> To be more exact, this breaks AP (including P2P GO) mode operations
> with wpa_supplicant because of EVENT_INTERFACE_DISABLED event getting
> generated at a particularly inconvenient time. Currently, that makes
> wpa_supplicant start scanning to find a station mode connection when the
> interface "comes back" (i.e., immediately after that on the next netlink
> event). This is obviously wrong behavior and should be fixed somehow
> regardless.
> There are instructions for P2P somewhere.. Anyway, the easiest way of
> showing this particular regression is by adding following to
> wpa_supplicant/.config:
> and using following wpa_supplicant.conf file:
> ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=admin
> driver_param=use_p2p_group_interface=1
> and run "wpa_cli p2p_group_add"
> That will create p2p-wlan0-0 vif that is supposed to be in AP/GO mode,
> but it gets moved to station mode when the interface-disabled event is
> processed.

I don't see how that patch would change any behaviour like this,
but I'll work on reproducing the problem and see what I can learn.

Thanks for the details.


Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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